diff --git a/puzzles/posters/50/index.html b/puzzles/posters/50/index.html
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+Little-known fact
+Is that the
+Best answer is
+Right here.
+And if you know what the key is, you'll know where to go next.
+Really, it's that simple.
+You need to speak the key at the front desk.
diff --git a/puzzles/posters/50/key b/puzzles/posters/50/key
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+LIBRARY